Given your response, it gave me the impression that it was possible, but I just wasn't thinking enough about it. :-)
using regex contain rule I populated a custom attribute using a condition filter "^((?!Welcome to Tomcat|Tomcat Manager Application).)*$" this also removed the "Tomcat Manger Application".
Thanks for pushing me to figure this out myself.
Give a Man a Fish, and You Feed Him for a Day.
Teach a Man To Fish, and You Feed Him for a Lifetime.